Identify the number of the surgical blade denoted in the image.

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

The image displays a surgical blade with a large, leaf-like shape and a prominent, long, curved cutting edge.
This morphology is characteristic of a No. 22 surgical blade.
The No. 22 blade is designed for making long, sweeping incisions, particularly in skin and muscle, such as during a laparotomy.
It fits onto a No. 4 series scalpel handle, which is used for larger blades.

Option A: A No. 11 blade has a long, triangular shape with a sharply pointed tip, resembling a spearhead. It does not have the large, curved belly seen in the image.
Option B: A No. 15 blade is much smaller and has a short, rounded cutting edge. It is not large and leaf-shaped like the blade in the image.
Option C: A No. 21 blade is similar in shape to a No. 22 blade but is generally smaller and has a less pronounced curve. The blade in the image has a very broad, prominent curve, making it a better match for a No. 22.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of surgical instruments, specifically surgical blades as background academic context rather than a clinical decision trigger.
A nurse's ability to correctly identify surgical instruments is critical for anticipating the surgeon's needs, ensuring procedural efficiency, and maintaining patient safety.
Proper blade handling, including mounting, removal, and disposal, is a fundamental aspect of sharps safety to prevent percutaneous injuries to the surgical team.
The scrub nurse is responsible for counting all sharps, including scalpel blades, before, during, and at the end of a surgical procedure to prevent retained surgical items.

How to Approach the Question

First, carefully examine the image of the surgical blade, paying close attention to its overall shape, size, and the curvature of the cutting edge.
Note the key features: Is it large or small? Is the tip pointed or curved? Is the cutting edge long and curved (like a leaf) or short and straight?
The blade in the image is large with a distinct, long, curved cutting edge (a prominent 'belly').
Recall or look up the characteristics of the blades listed in the options.
Compare your observations with the descriptions: A No. 11 is triangular/pointed, a No. 15 is small and curved, and a No. 21/22 are large and leaf-shaped.
Differentiate between No. 21 and No. 22. The No. 22 is known for its particularly large, broad, leaf-like shape, which matches the image perfectly. This confirms it as the correct answer.

Concept Tested & Keywords

Concept Tested: Identification of surgical instruments, specifically surgical blades.
Stem keywords: surgical blade, identify, image
Lead-in keywords: identify the number

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E6 Gynecology Williams p. 428-434

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 80-82

Practise the full NORCET 2 - 2021 (shift-1)

Attempt every question from this paper in a timed mock, then review the full solution for each one.